PARSCALE Support & Examples

Support

SSI, Inc. offers a technical support service via e-mail. This service is only available to registered end users of the SSI software products. Click here to view SSI’s policy and procedures for obtaining technical support.

Documentation

• PARSCALE Guide

• IRT References

Examples

The complete examples, including data and syntax, are available as zip files for each example. The final item contains the entire set of PARSCALE examples.

• Item calibration and examinee Bayes scoring with the rating-scale graded model (complete example zipped)

• Examinee maximum likelihood scoring from existing parameters (complete example zipped)

• Calibration and scoring with the generalized partial credit rating-scale model (complete example zipped)

• Two-group differential item functioning analysis with the partial credit model (complete example zipped)

• A test with 26 multiple-choice items and one 4-category item: 3PL logistic and generalized partial credit model (complete example zipped)

• Analysis of three sets containing items with two and three categories: calculation of combined scores (complete example zipped)

• Raters-Effect model: multi-record input format with varying numbers of records per examinee (complete example zipped)

• Raters-Effect model: one-record input format with same number of records per examinee (complete example zipped)

• Raters-Effect model: one-record input format with varying numbers of records per examinee (complete example zipped)

• all_examples (zipped)